Fukui Prefecture

• 1. Introduction

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  Fukui Prefecture sits on the Sea of Japan coast of Honshu, tucked between mountain ranges and an often-stormy shoreline. With a population of 737,229 as of the 1st of January 2025, it is one of Japan's least-populated prefectures. Yet this quietly modest stretch of coast holds the oldest standing castle in the country, a dinosaur quarry that keeps producing new species, and more nuclear reactors than any other prefecture in Japan. What kind of place accumulates such extremes? That question leads deep into Fukui's landscape, its deep past, and the everyday life of the people who have stayed.

• 2. Bones in the Sugiyama River

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  At the Kitadani Dinosaur Quarry, dug into the banks of the Sugiyama River within the city of Katsuyama, paleontologists have pulled out an unusually dense collection of ancient animals. Fukuiraptor, Fukuisaurus, Koshisaurus, Fukuivenator, Fukuititan, Tambatitanis, and Nipponosaurus have all come from this single site, along with an unnamed dromaeosaurid whose classification is still open. The quarry anchors the Kitadani Formation and what researchers call the Kitadani Family of fossils. Katsuyama now houses the Fukui Prefectural Dinosaur Museum, where those excavated remains are on public display.

• 3. Castles, Clans, and Wartime Loss

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  Fukui Castle once stood at the center of the region's political life, surrounded by a moat, the seat of the Matsudaira clan during the Edo period. The Matsudaira were descendants of Tokugawa Ieyasu, the founder of the Edo shogunate, and the clan later became part of the Japanese nobility after the Meiji Restoration. World War II ended that legacy in the most direct way possible: Fukui was heavily bombed, and the castle was demolished. The prefectural government buildings now occupy that same ground. Maruoka Castle, built in 1576, did survive and is recognized as the oldest standing castle in Japan.

• 4. Two Halves of One Prefecture

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  Fukui is really two landscapes pressed together. The western portion, which corresponds to the old province of Wakasa, is a narrow coastal plain squeezed between the mountains and the Sea of Japan. The larger eastern portion, once the province of Echizen, spreads into wider plains that hold the capital city and most of the population. Both halves fall within Japan's "snow country," a belt of territory along the Sea of Japan coast known for heavy winter snowfall. As of the 31st of March 2008, fifteen percent of the prefecture's total land area had been designated as natural parks, including Hakusan National Park, the Echizen-Kaga Kaigan and Wakasa Wan Quasi-National Parks, and Okuetsu Kogen Prefectural Natural Park.

• 5. Energy, Eyeglasses, and Paper

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  Sabae, a city of roughly 69,000 people, produces ninety percent of Japan's domestically made glasses. That single figure captures how concentrated Fukui's industries can be. Along Wakasa Bay in Tsuruga, several nuclear power plants supply electricity to the Keihanshin metropolitan region; Fukui holds fourteen reactors, more than any other prefecture in the country. Papermaking has its own deep roots here. The Echizen Papermaking Cooperative in Fukui has practiced the traditional Echizen method for centuries, and the region is widely regarded as a world-famous center for handmade paper. Clean water and fertile crops also support sake brewing, rice cultivation, and soba noodle production.

• 6. Temples, Ruins, and the Sea's Edge

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  Eihei-ji Temple was founded by Dogen Zenji in 1244 and sits on a plot of land covering roughly 33 hectares. It continues to train Buddhist monks today. Ichijodani Asakura Family Historic Ruins is considered one of the most important cultural heritage sites in Japan, a ghost of a medieval castle town frozen in place. Myotsu-ji's Three-storied Pagoda and Main Hall are designated National Treasures. On the coastline, Tojinbo is a stretch of dramatic sea cliffs that draws visitors but has also gained a reputation as a notorious spot for suicide. Echizen crabs are available year-round as a local delicacy, though the dedicated crabbing season falls in winter, and a small fish called genge is served raw as sashimi and is said to give the body a brief tingling sensation.

• 7. A Shrinking and Adapting Society

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  In July 2015-28.6 percent of Fukui's population was over the age of 65. Between the October 2010 national census, which counted 806,000 residents, and September 2015, the population had dropped by 2.6 percent to an estimated 785,508. The prefecture's response to declining birth rates took an unusual form: in August 2010, Fukui launched an online dating service called Fukui Marriage-Hunting Cafe. Couples who meet through the site and go on to marry receive monetary aid from the government along with gifts. The Mikuni Festival, a combined portable-shrine and floats celebration held every May, has been running since 1697, and the Takefu Chrysanthemum Character Doll Exhibition, held each October to November in Takefu Central Park, has taken place every year since 1952.